Texas Instruments Titanium TI-89, User Manual

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Appendix B: Technical Reference 893
Error
Number
Description
690 Missing )
700 Missing "
710 Missing ]
720 Missing }
730 Missing start or end of block syntax
740 Missing Then in the If..EndIf block
750 Name is not a function or program
765 No functions selected
780 No solution found
Using the interactive math features (F5:Math) in the Graph application can give this
error. For example, if you attempt to find an inflection point of the parabola
y1(x)=x
ñ
, which does not exist, this error will be displayed.
790 Non-algebraic variable in expression
If a is the name of a PIC, GDB, MAC, FIG, etc., a+1 is invalid. Use a different
variable name in the expression or delete the variable.
800 Non-real result
For example, if the unit is in the REAL setting of the Complex Format mode, ln(
ë
2)
is invalid.
810 Not enough memory to save current variable. Please delete unneeded variables on
the Var-Link screen and re-open editor as current OR re-open editor and use F1 8 to
clear editor.
This error message is caused by very low memory conditions inside the
Data/Matrix Editor.
830 Overflow
840 Plot setup